Improvement in horseshoe-machines



J. W. CHEWNING, Jr.

' HORSE'SHOE MACHINE.- No.181,641, Patented Aug.29, 1876.

monusvs.

N. PETERS. PNOTO-LITHOGRAFHER WASHINGTON. D. C.

UNITED STATES PATENT OFFICE.

.JOHN W. CHEWNING, J E, OF SHADWELL DEPOT, VIRGINIA.

IMPROVEMENT IN H ORSE SHOE-MACHINES specification forming part ofLetters Patent No. 18 1,64 l, dated August 29, 1876 application filedMay 20, 1876.

and I do hereby declare that the following is a full, clear, and exactdescription ofthe same,

'reference being had to the accompanying drawing, forming part of thisspecification, in which Figure l is a side elevation of the machine,part being broken away to show the construction and arrangement of theejector. Fig. 2 is a vertical. section of the machine on line mm,Fig. 1. Figs. 3, 4., 5 are detail views, which will be hereinafterreferred to.

My invention relates to a novel construction of a horseshoe-machine; andit consists in the construction and arrangement of the devices foroperating the swaging-die and bending-jaws; in the combination, with thepivoted jaws, of bending and guide-rollers 5 in the construction andarrangement of the ejector for the swaged horseshoe in the constructionand arrangement of the knife forcutting 011' the section of the barforming the horseshoe; and in the means for adjusting length of said outsection, all as hereinafter more fully described.

In the drawing, A A A represent the frame-work of the machine, which isto be strongly constructed of metal, and of any suitable shape, adaptedto form bearings for and carry the operating parts of the machine. B Bare the two main shafts of the machine, which are arranged at rightangles to each other, and are geared together by the bevelwheels a. Thefirst of these shafts, B, is arranged horizontally at the top of theframework, and is journaled in hearings in thesame, so as to revolvefreely, while the second shaft, B, is arranged vertically in bearings d.Shaft B carries a cam, 12, which plays in a box or yoke, 0, attached tothe rod D, which cam serves to impart to said rod avertically-reciprocating movement, which effects the bending of the barof iron, while shaft B has a cam, b, which plays in a box or yoke, 0',attached to the die E, which imparts to it ahorizontally-reciprocatingmovement, which effects the swaging of the horseshoe. The

rod D is arranged to reciprocate in guides c 0, while the die E slidesin guides in the framework. Instead of having the die E, however, i

to slide as shown, I may arrange the box or yoke C in side guides, inorder to give greater steadiness to the movement of the die, and

prevent the oscillation of the same.

F F are the two bending-jaws, which are pivoted to the reciprocating rodD at the top, and are pressed outwardly byan' intermediate spring, G.The lower portion of these jaws is enlarged at e, and provided withsheaves or friction-rollers f, upon which the bar of iron that forms thehorseshoe rests, and by which the said bar is bent as the jaws rise,

the bar being introduced while the rollers are below the die, andbetween the said die and rollers on the jaws. Upon the outside of eachof the jaws F is arranged a stationary plate or bar, G, which carries aroller, g, which second set of rollers bear against the outside edges ofthe jaws,,and force them inwardly as.

they rise, so as to effect the bending of the bar around theportion h ofthe die constituting the former. These rollers are flanged upon theirperiphery, and the outside edge of the jaws are correspondingly flangedor rabbeted at i, so that the rollers not only serve to force the jawsinwardly, but also operate as guides,

bottom of the shoe that is to receive the heads of the nails.

The ejector consists of a slide, I, provided with a tongue, is, on eachside, which slide fits in the perforation in plate H of the die, andwhich tongues fit and slide in grooves l in said same plate. This slideI is perforated longitudinally, and has a continuous rod, m, running itsentire length through said perforation, which rod is screw-threaded atboth ends. One of these ends of the rod is screwed a hole 8.

the retrograde movement of the die brings the slide I forward, and asits sliding tongues 70 project far enough to catch the shoe they re moveit from its seat and carry it to a position between the jaws F,fromwhence it is free to drop, the said jaws being cut away in order togive clearance to the discharge of the shoe.

To regulate the length of the section of metal to be cut to form theshoe I have con-- structed upon each side of the die a gage, of

which J is simply a stop-bar pivoted at the top to the frame-work, andprovided below with an adjusting-screw, 0, by meansof which the said baris forced inwardly to or out from the die, so as to shorten or lengthenthe section of metal between the said bar and the knife, which-islocatedupon the opposite side on a second gage-bar, K. This latter bar K isattached to a crossbar, L, fastened to the framework, and carries theknife bar M, which consists of a bar arranged in guide 19, which barterminates above in an enlarged projectiornq, and in a cutting-edge, 1',belowwhich cuttingedge is located just below the hole .9, through whichthe bar is inserted into the machine. This said knife'bar is held downby a spring, 6, and is elevated to cut off the section of metal by acam, 20, upon the main shaft B,which in its revolution strikes theprojection q of the knife and moves the cutting-edge r across the Tocompensate for the adjustment of the gage-bar J, and make the bending ofthe cut section of metal exactly in the middle, the bar K is left freeto move below, and is also provided with a binding-screw, c, which isadjusted with binding-screw 0 on the other side, so as to prevent onebranch of the horseshoe from being longer than the other.

, motion by any suitable application of power,

the bar of iron from which the shoe is to be formed is inserted throughthe hole 8. Knife then cuts off the proper length of bar, which restsupon the rollers of the jaws F immediately below the die E. The jaws Fthen rise and bend the cut section around the former of the die E, afterwhich the die itself advances and swages the shoe into proper binationwith the flanged stationary rollers g,,

substantially as and for the purpose described.

3. In a horseshoe-machine, the combination, with the swaging-die, of anejector arranged in alignment upon the end of said die, and operatedsimultaneously with the die on its retrograde movement to eject thehorseshoe, substantially as described.

4. The combination, with the die E, having a screw-socket in the end, ofthe rod m, slideI, and nut n,substantially'as and for the purposedescribed.

5. The die E and the perforated female die H H, having grooves l, incombination with the slide I, having tongues K, and the continuous rodm, having screw-threaded ends, and nut n, as andfor the purposedescribed.

6. The knife-bar M, having cutting'edge r and projection q, incombination with the spring t, the bar It, having hole 8, and the shaft13,1 having cam u, as and for the purpose described.

7. The combination, with the swaging devices,of the pivoted gage-bar J,having setscrew 0, and the gage-bar is, carrying the knife, and havingthe set-screw v, substantial] y as andfor the purpose described.

The above specification of my invention signed by me this 13th day ofMay. 1876.

JNO. W. GHEWNUNG, JR. Witnesses:

SoLoN G. KEMON, CHAS. A. PETTIT.

